First of all your boyfriend shouldn't be close with any girl who isn't blood related to him , no female " bestfriends " pretend " sisters " none of that . But to tell if they are cheating pay attention to how they act around eachother . If they spend more time together than you & him do than chances are they are messing around . If she spends the night at his house when no one's home ? Chances are they're doing something. If she calls him bae baby or babe , chances are they're doing something. If i were you i would shut that " brother , sister " thing down real quick.
You have to have trust in the relationship. If you do not, then break up. Try talking dirt with the sister.
ask him and you just have to trust his answer or do what you feel is right
If he still likes you then try and make him jealous!! If you are still dating him then break-up w/ him! He doesn't really like you if he cheated on you in the first place. Hope I helped!!!
If you are strictly dating one boyfriend or are married and you or both of you have cheated and been honest about it, it's still in the category of cheating. Learn from it! Cheating gets you nowhere, but a bad reputation. Marcy
you tell your sister that he was your boyfriend and to leave him alone and if she doesent if your sis is still at school tell your mum she is cheating on her homework or do something toy get her in trouble and she will stay away from him
If you have a girlfriend and a boyfriend, then you are cheating on both of them.
neither he is just trying to make himself seem less heartless
It's still cheating and you're still a slut
cheating is one thing but when he started hitting you that was the worse sign ever it was your sign to leave you cheated because he cheated and hit you. Why didn't you break up with him and called the police? anyways don't be with him.
You should have known that he didn't love you when you found out that he cheated on you.
Are you seriously believing the rumours that she cheated on her fella. She isn't cheating on him and never has so get your facts right.
HOW CAN YOU STILL LOVE HIM AFTER HE CHEATED BREAK UP. HE ONLY SAYS HE LOVES YOU TO AVOID THE WRATH Belive me I know
You still have feelings for your old boyfriend.
You are probably missing your cheating ex husband because even though he cheated on you, you may still love him.